/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package GestionLogin;

import Navegacion.Paginas;
import GestionUsuarios.UsuarioDAO;
import Navegacion.Pagina;
import InterfazGeneral.SystemFacade;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Administrador
 */
public class ValidacionLogin extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        if (request.getSession(true).getAttribute("usuarioActivo") == null) {
            UsuarioDAO u = null;
            try {
                u = SystemFacade.getInstancia().validarLogin(request.getParameter("email"), request.getParameter("clave"));
            } catch (Exception e) {
                Pagina.aviso("Error interno","La petición no pudo ser procesada", request, response);
                return;
            }
            if (u != null) {
                request.getSession(true).setAttribute("usuarioActivo", u);
                response.sendRedirect(Paginas.INDEX.getUrl());
            } else {
                response.sendRedirect(Paginas.LOGIN.getUrl());
            }
        } else {
            request.getSession(true).setAttribute("usuarioActivo", null);
            response.sendRedirect(Paginas.INDEX.getUrl());
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
